Fig. 2
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Abundance ratios ([X/Fe]) as a function of metallicity for the sample stars. The blue and red symbols represent planets with TTV and RV mass determinations, respectively. The star symbols indicate the abundances predicted using the ML method, and the circles represent the spectroscopic determinations. The gray dots represent stars without planets from the HARPS GTO sample (Adibekyan et al. 2012).
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